<!DOCTYPE html>
<html lang="en"
      xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
<head>
    <meta charset="UTF-8"/>
    <title>oops! 502 Bad Gateway</title>
</head>
<body>
<h2>oops! 502 Bad Gateway</h2>
<div>
    <a href="Javascript:history.back();">back</a>
</div>

</body>
</html>